Shuttle-lock for looms.



No. l155,911. Y PATLNTLD MAR. 29, 1904.

l P. A. MILLS.

SHUTTLE '1.00K POR LooMs.

APPLIOATION FILED SEPT. 26, 1903. No MODEL. z SHEETS-snm' 1.

No. 755,911. PATLNTBD MAR. 29, 1904.

. F. A. MILLS.v

SHUTTLE LOCK FOR Looms.

APPLIOATION FILED SEPT. 26, 1903.

N0 MODEL. l 2 SHEETS-SHEET v2.

NIV

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UNITED STATES Patented March 29, 1904;y

PATENT FRANCIS 'ARTHUR MILLS, OF LAWRENCE, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO GROSVENOR B. EMMONS, OF METHUEN, MASSA- CHUSETTS.

SHUTTLE-LOCK FOR LOONIS.

SPECIFICATION forming part of Letterslatent No. 755,911, dated March 29, 1904. Application 4filed September Z6, 1903. Serial No. 174,805. (No model.)

To all whom zit may concern:

Be it known that I, FRANCIS ARTHUR MILLS, a citizen of the United States of America, residing at the city of Lawrence, -in the county of Essex and State of Massachusetts, have in-l vented certain new and useful Improvements in Shuttle-Locks for Looms, of which the following is a specification. v I I My present invention in looms is directed to means whereby the shuttle-binder in its function of pressing against the shuttle to stop it 4and prevent rebound is dispensed with, as one of the elements of alever device and the force of the impact of the shuttle upon picker-stick is caused to effect the contact or engagement vof a pressure lever Idevice directly with the itself of a lever ldevice and a connection therefor actuated by the force ofthe impact of the shuttle upon the picker-stick or picker, the transmission of such force being direct from the shuttles impact to the shuttle itself and not through the intervention of a binder. The arrangement of the impact-strap beneath the lay and the connection of the strap with means beneath the lay wherebythe impact of the picker-stick is caused to operate above the lay to check and lock the shuttle at the end of its flight in the shuttle-box is also a feature of my invention.

Thefollowing description read in connec-v tion with the accompanying drawings will enable any one skilled in shuttle-locking mechanism for looms 'to understand my invention and to, practice it in the form in which I pre-` fel ,to employ it; but it will be understood 45.;

that'my invention is not limited to the precise `orm and details of construction herein illusi 1ltrated'and described, as various modifications ,andchanges may be made without exceeding usual mannerby the shuttle-binder. shows in rear view the right end of the lay to t illustrate the arrangement of the impact-strap and its lever connection as used for locking.

y thescope of the claims in which my invention is set out.

The object of my invention is to prevent the rebound of and to eect the locking of the shuttle in the shuttle-box at a desired position, and particularly in what is known as a magazine-loom in patent to Northrop, No. 529, 940, dated November 27, 1894, in which it is necessary that the shuttle be stopped at a position in the shuttle-box to permit a transfer of a bobbin of filling from the magazine 'to `the shuttle.

Referring to the drawings, Figure 1 shows a bottom view Yof vthe left end of a lay, illustrating the arrangement of an impact-strap at theunder side of the lay, the picker-stick as having delivered its impact upon the strap, and a lever connection by which the force of the impact upon the strap is delivered by pressure directly upon the shuttle itself to stop it. Fig. 2i's a view of the front side of the left end of the lay, showing the arrangement of the lever device and its impact-strap connection for delivering the force of the impact of the shuttle directly upon the shuttle itself to stop it. Fig. 3 is a transverse section on the line of Fig. 2, showing the lever locking device in direct contact with the side of the shuttle instead of upon the shuttle-binder. Fig. 4 is a top view, the wall of the shuttle-box being in horizontal section on the line y y of Fig.

3, showing the shuttle as having delivered its impact upon th'e picker and the shuttle locked by the direct contact therewith of the leverlocking device,which is actuated by the im pact of the shuttle. In this ligurel have also shown the protection-finger, which is actuated n the the shuttle by the usual binderl and the vdifference between pressing' on the binder from pressing on the shuttle.

The lay 1, having a shuttle-box 2 at each end, andthe slot?) for the picker-stick 4 are of the usual o r 4any approved construction, andthe invention which constitutes the subject-matter of this Vpatent is carried out by'a preferred means which I will now state.

A strap 5 constitutes the .connection for receiving and transmitting the impact of the shuttle upon the picker-stick or picker by pressure upon the shuttle itself to stop it at the end of its Hight, and for this purpose the strap is arranged at the under side of the lay, passed around and crossing the path of the picker-stick, and is fastened by a suitable strap-clamp having clamping-screws 19 19.`

The other end of the strap is connected to a lever device by which the force of the impact on the strap is transmitted by pressure directly against the side of the shuttle itself, as I will now state. A plate 6 is bolted, preferably, to the front side of the lay and has a pair of outward-projecting lugs 7 7, to which is fitted a horizontall bearing-pin 8, on which a lever is loosely mounted between the lugs, its upper arm 9 terminating in a pressurehand 10, somewhat in form like a cross and positioned so as to operate in an opening 11 vin the side of the shuttle-box for direct engagement bypressure with the shuttle itself. The lower arm 12 of this lever terminates in a iiat bearing 13 below the lay, and this lever Ais caused to rock upon 'its' bearing to commul communicate the impact on the strap to lower end of the vertical lever to force its upper end directly against theshuttle. The horizontal lever is of bell-crank form, its arms standing at right angles, with one of them in the line of the lay, .the other arm extending toward the rear side of the lay for connection with the impact-strap, so that the blow of the picker or picker-stickupon the strap under the impact of the shuttle is caused to give a quick jerk or pull of lthe strap toward the end of the lay and with it pull the lever to which the strap is connected, which gives a sudden drive tothe other lever-arm outward against the depending endof the vertical lever, driving it outward and its upper arm inward against the shuttle itself, forcing it instantly hard against the opposite binder and wall of the Vbox and locking it at the very point which will allow a bobbin of filling to be perfectly transferred into the shuttle. Provision is made for adjusting the strapat the end where it is clamped to the platev by a binderplate 17, crossing the strap and screwed to a raised seat 18 on the side plate, and to give from the picker-stick, and this is effected by the seat standing oblique from the lay. The adjustable plate 6 carries the lugs for the vertical lever, the depending stud for the horizontal lever, and the strap-clamp and is bolted to the lay by the bolts 20 20 as an entirety, making it very convenient to apply the locking device and its lever members. That end of the vertical lever which engages the shuttle presents a flat pressure surface having a leather face 21 to the shuttle, and it is important to note that the end of the lever stands within the opening with its shuttle-engaging face coincident with the inner wall of the box, so that the shuttle will be in contact with the end of the lever at the moment the locking force is put upon the lever.

In Fig. 2 the shuttle is shown as engaging the picker 22 at the moment the shuttle is locked and the locking-lever standing in the opening in the shuttle-box Wall against the side of the shuttle, and it will be understood that the lock of the shuttle is instantaneous with its impact on the picker and that the release of the lock on the shuttle is at the moment the shuttle has been started to be thrown. In this operation it is important to note that the upper arm of the vertical lever curves inward and overhangs its pivot bearing-pin and the lay, that the lower arm is longer and curves slightly inward, that the pivot of the horizontal lever depends from the lay vertically in line with its front side, that the meeting ends of the levers are maintained in contact, and that these meeting lever-arms are about of equal length with the strap-connected arm; but the shuttle-contacting arm is preferably shorter, so that theA lever members are thereby caused to act with a compound leverage pressure directly against the shuttle and presses it against the bind er and opposite wall of the box. It will also be noted that when the strap and the lever members are in their normal positions there is no tension on the strap, and the pressure-hand, by which the lever is locked, will thereby be maintained within its wall-opening with its acting face in line with the inner wall of the shuttle-box. It will also be noted that the plate which carries the lever members has depending below the lay the clamp-seat for the strap `standing obliquely to hold the clamped end of the strap in oblique relation to the, picker-stick, vthe clamp also securing a short reinforcing or wear strap 23 for the picker-stick# At its lever-connected end the strap is fastened by a nutted bolt 24 upon a curved end of the leverarm. As seen in Fig. 1, thenorrnal position of the picker-stick is in contact with the impact-strap, and it is in this position that it re,- ceives the impact ofV the shuttle, and at the inner end of the lay-slot is seen the fixed bunter 25 for the'picker-stick.

It is important to note that the arrangement of the impact-strap at the under side of the IOO IIO

on the iilling when transferring abobbin fromthe magazine to the shuttle.

The low-down position of the impact-strap is important, because it gives the advantage of -contact of the picker-stick a considerable distance from the upper end of the picker-stick,

and thereby permits aslight spring or giving action to the upper part ofthe picker-stick under therimpact of the shuttle. This is because thepicker is about four or iive inches above the strap and will therefore allowthe picker-stick to spring back. above thestrap when the picker is struck by the shuttle, and it is this yielding of the picker when struck that conduces to a better locking action of the strap upon the lever members than could be obtained if the strap passed around the pickerstick at the top of the lay and directly back of the picker. Moreover, the arrangement of the strap beneath the lay takes it away from rubbing and wearing against the end of the shuttle-box and the heel orpivoted end of the shuttle-binder, and thereby avoids all friction on the strap, and as a result renders the strap more sensitive in transmitting the force of the impact to the lever connections of the strap.

` Looking at Figs. l and 2 it will be seen that a single plate 6 carries the separate lever members and the oblique clamp-seat for the adjustable end ofthe strap, so that, with the strap and the lever members, the plate forms an entirety ready to be bolted to the side of the lay, so that when so bolted the strap will extend along .one side of the picker-stick slot and the shuttleengaging lever in the eXact position to effect the lock of the shuttle, thereby giving the advantage of applying the shuttle-lock mechanism as a single device with its parts properly related to each other and to the sl1uttle-boX.

- In this attachment both ends of the strap stand toward the same side of the lay, and the lever which connects its inner end while crossing theline of the path of the picker-stick v crosses the inner end. of the iixed bunter 25, which limits the inward throw of the pickerstick, and thereby prevents the lever from being struck by the picker-stick.

In Figs. 3 and 4I have shown a shuttlebinder 26 and the protection-finger 27 `operated thereby in the usual manner; but it will be noticed that the binder is at that side of the shuttle-box opposite the lever device, the pressure of which upon the shuttle locks it against the spring-pressed shuttle-binder and the wall at the opposite side of the box. this arrangement the lever device first presses against the shuttle, and the shuttle is thereby pressed against the spring-pressed shuttlebinder and the opposite wall of the shuttle-box and actuates the protection-finger. By this arrangement the protection -inger is con- `stantly .under an inward pressure upon the Inv .shuttle-binder, and the latter is therefore site side of the shuttle.

In Fig. 5 I have shown the binder 26 as it is used with the lever locking device 28, Ywhich isthe lever part l0 of my patent of August 5, 1902, No. 706,190, but with theimpactstrap arranged at the under side of the lay.

I claimF Y l. In a loom and in combination, the lay, the shuttle-box thereon, the picker and the picker-stick, a strap to receive the impact of the shuttle upon the picker-stick arranged at the under side of the lay, crossing the path of the picker-stick and `connected to the lay, and means connecting the other end of the Vstrap at the under .side of the lay constitut- I the shuttle-boi thereon, the picker and pickerstick, a strap to receive the impact of the shuttle upon the picker, arranged at the under side of the lay crossing the path of the picker-stick and connected to the lay, and lever members on the lay one of said members of bell-crank form pivoted atthe under side of the lay, having one arm connected to the strap, the other lever member pivoted in vertical position on the lay having free connection withthe other arm of the bell-crank lever.

3. In a loom and in combination, the lay, the shuttle-box thereon, the picker and pickerstick, a strap to receive the impact of the shuttle upon the picker, arranged at the under side of the lay passing around the pickerstick and having one end connected to the lay, and lever members connected to the other'end of the strap and `arranged to transmit the force of the impact on the strap toV the'shuttle to stop and to lock it. y

4. In a loom and in combination, the lay, the shuttle-box thereon, the picker and pickerstick, a strap to receive the impact of the shuttle upon the picker arranged at the under side of the lay, lever members pivoted on the lay one of which is connected t0 the free end of the strap, `the other end ofthe strap crossing the path of thepicker-sticl and connected to the lay, the other lever member terminating in a pressure-hand in anV opening in the side of the shuttle-boxv and in line with its inner wall for engagement with the side of thevshuttle to stop and to lock it.

5. In a loom a shuttle-.box having a side opening, a lever vertically pivoted on the lay, its upper end formed with a pressure-hand normally maintained with its actilgfacein roo line with the inner wall of the box and adapted to be forced with an impact pressure against the incoming shuttle, the lower end of said lever hanging free beneath the lay, a bell-crank lever pivoted at the under side of the lay, one arm standing in line with the lay at right angles to and in contact with the hanging lever-arm, the other bell-crank-lever arm extending transversely of the lay, and an impact-strap fastened to this transverse arm and passing around the picker-stick is fastened to the lay, for operation as stated.

6. In a loom, the lay, a shuttle-box thereon, a picker and picker-stick, lever members on the lay, one standing vertical at the side, pivoted mediately of its length, its upper arm terminating in a pressure-hand within an opening in the side of the shuttle-box, the lower arm of said lever extending below the lay, a horizontal lever pivoted to the under side of the lay having an arm standingin line with the lay in free engagementwith the hanging end of the vertical lever, the other arm of the said lever crossing the lay and a strap connected to this end of the lever, passing around the picker-stick and having its end fastened to the lay, whereby the force of the impact of the shuttle is caused to be transmitted to the pressure-hand to force it in direct contact with the side of the shuttle to lock it and prevent rebound.

7 In a loom and in combination with the lay, the picker-stick, the shuttle-box having an opening in its side wall, lever members consisting of a pair of coacting levers, one standing vertically and loosely pivoted to rock at the side of the lay, provided with a pressurehand standing in the shuttle-box opening with its acting face normally in line with the inner wall of the box, the lower end of said lever terminating in a face-bearing below the lay, the second lever loosely pivoted to rock horizontally at the under side of the lay, having one arm terminating in a face-bearing in contact with the lower face-bearing of the vertical lever, and the other arm extending across the picker-stick bunter at the inner end of the lay-slot, the meeting ends of the levers and the strap-lever being longer than the shuttlepressing end of the vertical lever, and a strap beneath the lay connecting the transverse lever-arm, passing around the picker-stick and fastened to the lay.

8. In a loom and in combination, a lay, a shuttle-box thereon, the picker-stick, a plate fastened to the lay, a lever pivoted to rock vertically on said plate, a bell-crank lever pivoted to rock horizontally on said plate beneath the lay, arms of the levers meeting in contact beneath the lay, a strap connected to an arm of the bell-crank lever and crossing the path of the picker-stick a clamp whereby the strap is fastened by a clamp to said plate, whereby the impact of the shuttle upon the picker and the picker-stick upon the strap is transmitted to the vertical lever to drive its upper end against the shuttle to lock it.

9.In combination in a loom, the lay, the shuttle-box, the picker and picker-stick, a strap to receive the impact of the shuttle upon the picker, arranged at the under side of the lay and passing around the picker-stick, a clamp for connecting the strap to the lay consisting of a seat standing oblique on the lay, a plate across the end of the strap and a bolt passing through each end of the plate and engaging the seat, to bind the strap thereon, and means on the lay connected to the other end of the strap for transmitting the force of the impact thereon to stop and to lock the shuttle.

10. Ina loom, the lay, the shuttle-box thereon, the picker and picker-stick, a strap to receive the impact of the shuttle upon the picker arranged at the under side of the lay, passing around the picker-stick and having one end connected to the lay, and means on the lay connected to the other end of the strap at the under side of the lay for transmitting the force of the impact thereon to stop and to lock the shuttle.

11. In a loom, the lay, the shuttle-box, the picker and the picker-stick, a strap connected to a lever device and passing around the pickerstick to receive the impact of the incoming shuttle upon the picker and picker-stick, means for adjusting and clamping the strap consisting of a seat-clamp standing obliquely from the lay, a plate crossing the end of the strap anda bolt passing through each end of the plate and engaging the seat-bracket to permit the adjustment and clamping of the strap to stop the shuttle at adesired position in the shuttle-box and for the purpose stated.

12. In a loom and in combination, the lay, the shuttle-box thereon, a picker and pickerstick, an impact-strap, an adjustable plate on the lay, an oblique seat on the plate, a clamp securing one end of the impact-strap upon the seat, lever members pivotally mounted in bearings on the plate and to oneof which the other end of the impact strap is attached whereby all the shuttle-locking parts are carried by said plate.

13. In a loom and in combination, the lay, the shuttle-box thereon, a picker and pickerstick, an impact-strap beneath the lay, a clamping device on the lay to fasten and permit the adjustment of the strap, a lever mounted horizontally beneath the lay having one arm connecting the other end of the strap, and means connecting another arm of said lever for transmitting the locking action of theimpact-strap to lock the shuttle.

14C. In combination, thelay, the shuttle-box thereon, a picker and picker-stick and a bunter to limit the inward throw of the latter, a lever pivoted on the under side of the lay crossing the bunter and terminating at the opposite side of the picker-stick slot, an impactstrap beneath the lay connected to the end IOO IIO

of the lever, extending along one side of the picker-stick slot crossing it and adjustably connected to the lay, and means connected to said lever and actuated by it for checking and locking the shuttle.

15. In a loom and in combination, the lay, the shuttle-box thereon, the picker and pickerstick, a strap to receive the impact of the shuttle upon the picker and picker-stick arranged at the under side of the lay, and connected to the lay, means connecting the other end of the strap at the under side ofthe lay and constituting lever connections at one side of the boX for imparting contacting pressure di\ rectly upon the shuttle to stop and lock it, a shuttle-binder at the other side of the box,

FRANCIS ARTHUR MILLS.

Witnesses:

DUNcAN Woon, ALFRED DoBsoN. 

